24.1 The Participant shall authorize one or more of his employees to access the computer processing activities for the BSE's on-line services. The Participant shall appoint a security administrator, who shall be responsible for giving the Participant's employees access to the computer processing activities, and to assigning them with a password recognized by the BSE. The Participant's security administrator shall promptly notify the CSU of any change in the form currently on file with the CSU.

24.2 Each Participant's files with the CSU shall have a list of designated authorized signatories, specifying the name, function and telephone number of the designated employee as an authorized signatory, and a specimen signature of that employee. The authorized signatory shall be empowered to act on behalf of and in the name of the Participant for all purposes relating to clearing and settlement in accordance with these Rules, and the Participant shall be responsible for any document signed by such authorized signatory.

24.3 Each Participant and each securities account shall be allocated with a Unique Identification Number, which must be used at all times.